Attachment for bench work holder



June EL 3960 T. w. BEYER 2,41,79

' ATTACHMENT FOR BENCH WORK HOLDER Filed Dec. 26, 1956 INVENTOR. THOMASW. BEYEW ATTORNEY United States Patent 2,941,796 ATTACHMENT FOR BENCHWORK HOLDER Thomas W. Beyer, 17 Francis St, San Rafael, Calif. FiledDec. 26, 1956, Ser. No. 630,507 1 Claim. (Cl. 269-434) This invention isan improvement of an attachment to the type of work holders described inmy co-pending application Serial No. 560,932, filed January 24, 1956 onwork holders, now abandoned.

In the handling of cylinder heads, particularly cylinder heads on socalled V type engines, the difiiculty is in the awkward arrangement forremoval of valve guides or bushings or the grinding of valve seats orother work to be performed on such heads, because in so handling andWorking with the heads on the usual bench the heads are either distortedor nicked or otherwise damaged. Accuracy of the work is also dangeredbecause of the lack of accurate and solid support of the head and theconvenient position for working. In order to hold such cylinder heads inposition on my work holder described in my said co-pending application,I provide an attachment the object of which is for quickly engaging thecylinder head or both cylinder heads of a V type engine and allow theadjustment of the same over the bench or off the bench in convenientpositions for the workman.

I am aware that some changes may be made in the general arrangements andcombinations of the several devices and parts, as well as in the detailsof the construction thereof without departing from the scope of thepresent invention as set forth in the following specification, and asdefined in the following claim; hence I do not limit my invention to theexact arrangements and combinations of the said device and parts asdescribed in the said specification, nor do I confine myself to theexact details of the construction of the said parts as illustrated inthe accompanying drawings.

With the foregoing and other objects in view, which will be mademanifest in the following detailed descrip: tion, reference is had tothe accompanying drawings for the illustrative embodiment of theinvention, wherein:

Fig. 1 is a perspective view of my cylinder head holder attached to mywork holder.

Fig. 2 is a side view of my device showing one of the cylinder headsheld over the bench, the other hanging vertically.

Fig. 3 is a front view of my device with the upper holder arms adjustedover the bench.

In Fig. 1 of the drawings herein I show my novel device attached to ahorizontal work holder of the type shown in Fig. 1 of my said co-pendingapplication. In this case, a generally horizontal shaft 6 is supportedin bearing brackets 7 on a base plate 8 secured by bolts 9 to a bench11. The shaft 6 extends beyond the edge 10 of the bench so as to allowmanipulation of the supporting bracket and the work.

In my attachment for such bench holder I provide a sleeve 12 which isadapted to be slipped over the outer end of the shaft 6 and to besecured thereon in any suitable manner such as by setscrew 13. On theouter end of the sleeve 12 is provided a transverse sleeve 14 ofgenerally rectangular cross-section to slidably retain therein a supportbar 16 also of rectangular cross-section.

On the ends of the support bar 16 are slidable the rectangular hubs 17of bracket plates 18 respectively. Each bracket plate 18 is generallysemi-circular.

The hubs 17 and the square support bar 16 respectively can be supportedin adjusted position relatively to one another and to the transverse setscrews 19.

Along the straight or diametrical edge 20 of each semicircular plate 13and on each side of the hub 17 are provided a pair of holes 21. Anadjustable bracket arm 23 is held in position by a pivot bolt 24extended through the hole 21 nearer to the hub 17. A setting pin 26extends through the other hole 21 and also through an aligned hole 27 inthe adjacent bracket arm 23 to hold the bracket arm 23 in extendedposition. The setting pin 26 is provided with a spring pressed ballcatch 28 to prevent accidental removal through the said holes 21 and 27.

The outer end of each bracket arm 23 is provided with a threaded hole 29into which is threadedly secured a rod 31. This rod 31 is adapted to beextended through any of the usual holes 32 of a cylinder head 33. A wingnut 34 threaded on the outer end of rod 31 fastens the cylinder head 33in position so that the cylinder head 33 is clamped between the wingnuts 34 and the bracket arms 23. The bracket arms 23 are of suflicientlength to support the average cylinder head 33 thereon with freedom ofswinging with the bracket arm 23 relatively to the support bar 16.

In order to raise or move the cylinder head 33 to a convenient positionthe setting pin 26 is removed from the adjacent bracket arm 23 on theside on which the cylinder 33 has to be supported and then the parallelbracket arms 23 with the head 33 are swung to the adjusted position,either over the bench or off the bench. By turning the shaft 6 to therespective adjusted position work can be conveniently performed on thehead. By turning the device all around so that the initially loweredhead is raised to the top, then the latter can be turned either over thebench or off the bench to any convenient position for the work to beperformed thereon.

This device is extremely simple, but it is very important because itavoids injury to the cylinder head which must be Worked precisely, asWell as avoids injury to the workman who works on the same, yet permitsconvenient placing and holding of the cylinder head in position for anyparticular operation to be performed on the same in the usual repair orassembly.

I claim:

A cylinder head holder for a bench work holder comprising a bar,rotatable means to removably support the bar on said bench work holder,spaced bracket plates adjustable longitudinally on said bar at rightangles to the planes of said plates, each bracket plate having a pair ofholes therethrough parallel with said bar, a bracket arm pivoted in oneof said holes on said bracket plates, removable means to engage eachbracket arm through the other of said holes to hold the arm in extendedposition or to permit its pivoting at will, and an element on the freeend of each bracket arm engageable with a hole in a cylinder head forholding the cylinder head in position on said bracket arm, saidrotatable support means including a sleeve fitting on an element of thebench holder, a transverse sleeve on the first sleeve having arectangular bore therethrough, and said bar being rectangular andslidable through the transverse sleeve, and a rectangular hub on eachbracket plate slidably adjustable on said rectangular bar.

sleeve 14 by respective References Cited in the file of this patentUNITED STATES PATENTS 456,164 Scudder July 21, 1891 1,126,053 McGoughJan. 26, 1915 1,386,318 Cowan Aug. 2, 1921 1,559,453 Pritner Oct. 27,1925

